CVE-2025-3230: Github.com/mattermost/mattermost/server/v8 Mattermost Fails To Properly Invalidate Vulnerability

MODERATE
Advisory Identifier: GHSA-mc2f-jgj6-6cp3
CVSS 5.4
CWE-303
Published
Advisory Summary

CVE-2025-3230 is a MODERATE (CVSS 5.4) mattermost fails to properly invalidate vulnerability (CWE-303: Incorrect Implementation of Authentication Algorithm) affecting Github.com/mattermost/mattermost/server/v8 libraries in the Go ecosystem. The issue involves mattermost fails to properly invalidate personal access tokens upon user deactivation. Remediation is available by upgrading affected packages to version 10.7.1, 10.6.3, 10.5.4, 9.11.13, 8.0.0-20250402193107-65343f84a783.

CVE-2025-3230 at a Glance

CVE Identifier CVE-2025-3230
GHSA Identifier GHSA-mc2f-jgj6-6cp3
Severity MODERATE
CVSS v3.1 Base Score 5.4
CWE Classification CWE-303: Incorrect Implementation of Authentication Algorithm
Affected Product Github.com/mattermost/mattermost/server/v8
Package Ecosystem Go
Published Date
Last Updated

Security Impact

CVSS: 5.4

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N).

Attack Vector Network (AV:N)
Attack Complexity Low (AC:L)
Privileges Required Low (PR:L)
User Interaction None (UI:N)
Scope Unchanged (S:U)
Confidentiality Low (C:L)
Integrity Low (I:L)
Availability None (A:N)

How to Fix CVE-2025-3230

To remediate this vulnerability, upgrade all affected Github.com/mattermost/mattermost/server/v8 dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

github.com/mattermost/mattermost/server/v8 fixed: 10.7.1
Upgrade github.com/mattermost/mattermost/server/v8 to 10.7.1
github.com/mattermost/mattermost/server/v8 fixed: 10.6.3
Upgrade github.com/mattermost/mattermost/server/v8 to 10.6.3
github.com/mattermost/mattermost/server/v8 fixed: 10.5.4
Upgrade github.com/mattermost/mattermost/server/v8 to 10.5.4
github.com/mattermost/mattermost/server/v8 fixed: 9.11.13
Upgrade github.com/mattermost/mattermost/server/v8 to 9.11.13
github.com/mattermost/mattermost/server/v8 fixed: 8.0.0-20250402193107-65343f84a783
Upgrade github.com/mattermost/mattermost/server/v8 to 8.0.0-20250402193107-65343f84a783
Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release:

inspect dependencies for github.com/mattermost/mattermost/server/v8

How to Check if You Are Affected

To determine whether your application is affected by CVE-2025-3230, inspect your project dependencies for Github.com/mattermost/mattermost/server/v8:

inspect dependencies for github.com/mattermost/mattermost/server/v8

Analyze the terminal output to locate any version of Github.com/mattermost/mattermost/server/v8 in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 10.7.1), your application is affected.

Note: Verify declared build manifests and deployed runtime container environments.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-303: Incorrect Implementation of Authentication Algorithm, where the requirements for the product dictate the use of an established authentication algorithm, but the implementation of the algorithm is incorrect. In Github.com/mattermost/mattermost/server/v8, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.

Source Advisory Statement

Mattermost versions 10.7.x <= 10.7.0, 10.6.x <= 10.6.2, 10.5.x <= 10.5.3, 9.11.x <= 9.11.12 fails to properly invalidate personal access tokens upon user deactivation, allowing deactivated users to maintain full system access by exploiting access token validation flaws via continued usage of previously issued tokens.

CVE-2025-3230 Affected Github.com/mattermost/mattermost/server/v8 Versions

5 component(s)
Fixed Versions:
10.7.110.6.310.5.49.11.138.0.0-20250402193107-65343f84a783
Product / Package Ecosystem Affected Versions Fixed Version
github.com/mattermost/mattermost/server/v8
Go
≥ 10.7.0-rc1
< 10.7.1
10.7.1
github.com/mattermost/mattermost/server/v8
Go
≥ 10.6.0-rc1
< 10.6.3
10.6.3
github.com/mattermost/mattermost/server/v8
Go
≥ 10.0.0-rc1
< 10.5.4
10.5.4
github.com/mattermost/mattermost/server/v8
Go
≥ 9.0.0-rc1
< 9.11.13
9.11.13
github.com/mattermost/mattermost/server/v8
Go
< 8.0.0-20250402193107-65343f84a783
8.0.0-20250402193107-65343f84a783

References

Frequently Asked Questions

What is CVE-2025-3230?
CVE-2025-3230 is a security vulnerability in Github.com/mattermost/mattermost/server/v8 involving Mattermost fails to properly invalidate personal access tokens upon user deactivation under CWE-303: Incorrect Implementation of Authentication Algorithm.
Which Github.com/mattermost/mattermost/server/v8 versions are affected?
Affected versions include releases prior to 10.7.1, 10.6.3, 10.5.4, 9.11.13, 8.0.0-20250402193107-65343f84a783 across affected packages: github.com/mattermost/mattermost/server/v8.
What version fixes CVE-2025-3230?
Upgrading to 10.7.1, 10.6.3, 10.5.4, 9.11.13, 8.0.0-20250402193107-65343f84a783 (or the latest patched release for your respective branch) resolves the vulnerability.
Is github.com/mattermost/mattermost/server/v8 affected?
Yes, github.com/mattermost/mattermost/server/v8 is affected in releases prior to 10.7.1, 10.6.3, 10.5.4, 9.11.13, 8.0.0-20250402193107-65343f84a783. Upgrade your dependency to 10.7.1, 10.6.3, 10.5.4, 9.11.13, 8.0.0-20250402193107-65343f84a783 or later.
What is the CVSS score of CVE-2025-3230?
CVE-2025-3230 has a CVSS v3.1 base score of 5.4 (MODERATE) with vector string CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N.
What CWE is associated with CVE-2025-3230?
CVE-2025-3230 is classified under CWE-303: Incorrect Implementation of Authentication Algorithm (The requirements for the product dictate the use of an established authentication algorithm, but the implementation of the algorithm is incorrect.).
How can I check Go dependencies for CVE-2025-3230?
Run the dependency tree command: 'inspect dependencies for github.com/mattermost/mattermost/server/v8'. This command lists direct and transitive dependencies in your build configuration so you can verify if a vulnerable version is resolved.
Machine-readable OSV JSON OSV v1.5 Schema
Normalized schema output
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-mc2f-jgj6-6cp3",
  "modified" : "2025-05-30T18:48:28Z",
  "published" : "2025-05-30T15:30:32Z",
  "aliases" : [ "CVE-2025-3230" ],
  "summary" : "Mattermost fails to properly invalidate personal access tokens upon user deactivation",
  "details" : "Mattermost versions 10.7.x <= 10.7.0, 10.6.x <= 10.6.2, 10.5.x <= 10.5.3, 9.11.x <= 9.11.12 fails to properly invalidate personal access tokens upon user deactivation, allowing deactivated users to maintain full system access by exploiting access token validation flaws via continued usage of previously issued tokens.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N"
  } ],
  "affected" : [ {
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      "ecosystem" : "Go",
      "name" : "github.com/mattermost/mattermost/server/v8"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "10.7.0-rc1"
      }, {
        "fixed" : "10.7.1"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "Go",
      "name" : "github.com/mattermost/mattermost/server/v8"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
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        "introduced" : "10.6.0-rc1"
      }, {
        "fixed" : "10.6.3"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "Go",
      "name" : "github.com/mattermost/mattermost/server/v8"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
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        "introduced" : "10.0.0-rc1"
      }, {
        "fixed" : "10.5.4"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "Go",
      "name" : "github.com/mattermost/mattermost/server/v8"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "9.0.0-rc1"
      }, {
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      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "Go",
      "name" : "github.com/mattermost/mattermost/server/v8"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "8.0.0-20250402193107-65343f84a783"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2025-3230"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/mattermost/mattermost/commit/65343f84a7830fa8078fe3df879fca924e4fac01"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/mattermost/mattermost"
  }, {
    "type" : "WEB",
    "url" : "https://mattermost.com/security-updates"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-303" ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2025-05-30T18:48:27Z",
    "nvd_published_at" : "2025-05-30T15:15:41Z"
  }
}